---
product_id: 413917030
title: "FCLF8521P2BTL 1000Base-T Copper SFP Transceiver"
brand: "finisar"
price: "$U6925"
currency: UYU
in_stock: true
category: "Finisar"
url: https://www.desertcart.uy/products/413917030-fclf8521p2btl-1000base-t-copper-sfp-transceiver
store_origin: UY
region: Uruguay
---

# 1.25Gbps ultra-fast data Hot-pluggable RJ-45 SFP Wide -40°C to +85°C range FCLF8521P2BTL 1000Base-T Copper SFP Transceiver

**Brand:** finisar
**Price:** $U6925
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your network game with Finisar’s powerhouse SFP transceiver!

## Quick Answers

- **What is this?** FCLF8521P2BTL 1000Base-T Copper SFP Transceiver by finisar
- **How much does it cost?** $U6925 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/413917030-fclf8521p2btl-1000base-t-copper-sfp-transceiver)

## Best For

- finisar enthusiasts

## Why This Product

- Trusted finisar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blazing 1.25Gbps Speed:** Seamlessly power your network with ultra-fast bi-directional data transfer.
- • **Plug & Play Simplicity:** Hot-pluggable SFP footprint means zero downtime during upgrades or swaps.
- • **Energy-Efficient Design:** Low 1.05W power dissipation keeps your setup green and cool.
- • **Rugged Temperature Resilience:** Operates flawlessly from -40°C to +85°C—built for any environment.
- • **EMI Shielded Metallic Enclosure:** Ensures stable, interference-free connections for mission-critical tasks.

## Overview

The Finisar FCLF8521P2BTL is a compact, hot-pluggable 1000Base-T copper SFP transceiver delivering up to 1.25Gbps bi-directional Ethernet over Cat 5 cable. Engineered with a fully metallic enclosure for low EMI and designed to operate in extreme temperatures (-40°C to +85°C), it ensures reliable, high-speed connectivity with low power consumption (1.05W typical). Ideal for professional-grade networking setups requiring robust, energy-efficient performance.

## Description

Finisar FCLF8521P2BTL 1.25Gbs 1000BASE-T Gigabit Ethernet -4085Â¨Â®Â¨Ã†_C Copper SFP Transceiver. In-Stock. Lifetime Warranty.

## Features

- Features: Up to 1.25Gb/s bi-directional data links Hot-pluggable SFP footprint Extended case temperature range (-40 ãC to +85 ãC ) Fully metallic enclosure for low EMI RoHS compliant and Lead Low power dissipation (1.05 W typical) Compact RJ-45 connector assembly Access to physical layer IC via 2-wire serial bus 10/100/1000 BASE-T operation in host systems with SGMII interface Applications: 1.25 Gigabit Ethernet over Cat 5 cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B017U4EA86 |
| Are Batteries Included | No |
| Best Sellers Rank | 343,324 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 569 in Network Transceivers |
| Brand | Finisar |
| Date First Available | 27 Feb. 2015 |
| Guaranteed software updates until | unknown |
| Item Weight | 22.7 g |
| Item model number | FCLF8521P2BTL |
| Manufacturer | FINISAR - IMSOURCING |
| Product Dimensions | 0.25 x 0.25 x 0.25 cm; 22.68 g |

## Images

![FCLF8521P2BTL 1000Base-T Copper SFP Transceiver - Image 1](https://m.media-amazon.com/images/I/51zeSlFtWAL.jpg)

## Frequently Bought Together

- FCLF8521P2BTL 1000Base-T Copper SFP Transceiver
- FLYPROFiber- LC to LC Fiber Patch Cable 1M/3ft, OM3 Multimode Fiber Optic Cable Cord, 10GB/40GB, Duplex, 50/125um, LSZH, Options: 0.2m-200m
- FLYPROFiber- 1M/3ft OS2 Single Mode LC to LC Fiber Patch Cable, SM Singlemode Duplex, SMF Fiber Optic Cable Cord, 1G/10GB, 9/125um, LSZH

---

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**Shop now:** [https://www.desertcart.uy/products/413917030-fclf8521p2btl-1000base-t-copper-sfp-transceiver](https://www.desertcart.uy/products/413917030-fclf8521p2btl-1000base-t-copper-sfp-transceiver)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-15*